It left the factory with a 5" barrel and fluted cylinder.
Performance Center parts and labor, including tuning and trigger stop.
Rear sight is Cylinder and Slide. Tritium front sight might be XS, I forget.
Someone out there has a 625-5 Classic in .45 Colt that the Performance Center put an unfluted cylinder in for me, along with some other work. I haven't seen that one in 10-15 years. Hopefully someone on this forum has it.
I also had a 625-3 with 4" non-PC barrel. The PC put an unfluted cylinder in that one as well. Someone on this forum may have that one as well.
There are at least two 25-12's that I had the PC put 22-4 four inch barrels on.